May be a different field of interest for him right now, or possibly an illness. Did find a link referring that he "get well soon" dated Nov. 2010. But no recent links on his activity.
If indeed an illness, I wish him a full and speedy recovery. If another field of interest, may it be rewarding!

There has been a financial incident between Doc and ChannelPro, as far as I can grasp, Doc has completely detached himself from motherboards.org/ChannelPro, setting up TechOfTomorrow http://www.techoftomorrow.com/Which as of today has no support forums yet.

We hate rut, but we fear change.
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System error, strike any user to continue...